Power supply for a flashlight



FIG. 1 is a perspective view of a power supply for a flashlight showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a first end view thereof; and,

FIG. 4 is a second side elevational view as seen from the side opposite that of FIG. 2.

The broken line showing is for environmental purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a power supply for a flashlight, as shown and described. 